Best practices for hyperlinking in help?

[Peter Neilson]

Leonard C. Porrello wrote:

> hyperlink every instance of a phrase, the text often looks too cluttered
> with links. I have a solution in mind, but I'd be grateful for any ideas

Do you have a choice over how the links display, individually? You could 
make the first instance (or several key ones) appear with the blue text 
and underline (or whatever), and let the rest of them look like vanilla 
text, only revealing their hypertextitude if you hover over them.